Abstract: A printing device includes a device main body that has a feeding unit to feed a recording medium and a printing section to print by ejecting ink from a head onto the recording medium, and a heating unit disposed on a downstream side in a feed direction of the recording medium with respect to the device main body. The heating unit has a medium passage to pass the recording medium after printing therethrough, a heat generator disposed between the medium passage and the air passage in a sectional view of the heating unit to heat the recording medium after printing, and an air passage having an air aspirating port connected with the medium passage to aspirate air and an air discharging port to discharge air. The air aspirating port is located on an upstream side in a feed direction of the recording medium with respect to the air discharging port.